WSN  Vol.7 No.3 , March 2015
Design of Crossbar Mixer at 94 GHz
Abstract: This paper presents the design and performance of a 94 GHz crossbar mixer using chip diodes in crossbar configuration. The mixer has been designed in suspended stripline configuration on 2 mil fused quartz substrate. Co-simulation between Agilent Advance Design System (ADS) and CST Microwave studio is used to simulate and optimize the mixer circuit. The conversion loss of this crossbar mixer with ~10 dBm of LO power over RF bandwidth (89 to 93.8 GHz) with LO frequency at 94 GHz has been measured. Measurement results show minimum conversion loss of the order of 8 dB and achieved LO to RF isolation was greater than 26 dB.
Cite this paper: Shah, S. and Gupta, G. (2015) Design of Crossbar Mixer at 94 GHz. Wireless Sensor Network, 7, 21-26. doi: 10.4236/wsn.2015.73003.

[1]   Paul, J., Yuan, L. and Yen, P. (1982) Beam Lead Dielectric Crossbar Mixers from 60 to 140 GHz. 1982 IEEE MTT-S International Microwave Symposium Digest, Dallas, 15-17 June 1982, 372-373.

[2]   Nguyen, C. and Chang, K. (1984) 140 GHz Broadband Crossbar Stripline Mixer with over 20 GHz Instantaneous RF Bandwidth. Electronics Letters, 20, 441.

[3]   Bui, L.Q., Ton, N. and Ball, D. (1984) A D-Band Millimeter-Wave Crossbar Mixer. 1984 IEEE MTT-S International Microwave Symposium Digest, San Francisco, 30 May-1 June 1984, 555-556.

[4]   Lioutas, N. and Fourikis, N. (1991) The Development of Simplified Crossbar Mixer Operating at Ka-Band. International Journal of Infrared and Millimeter Waves, 12, 845-855.

[5]   Lehtovuori and Costa, L. (1998) Model for Shielded Suspended Substrate Microstrip Line. Circuit Theory Laboratory Report Series, No. CT-38, Espoo, 12 p.

[6]   Maas, S.A. (1986) Microwave Mixers. Artech House, Boston.

[7]   Tahim, R.S., Chan, J.C. and Dutt, B. (1983) Millimeter Wave Image Enhanced Mixer. 4th International Symposium on Recent Advances in Microwave Technology.

[8]   Matthaei, G., Young, L. and Jones, E.M.T. (1980) Microwave Filters, Impedance Matching Networks, and Coupling Structures. Artech House, Boston.